Xtserial Stata Install ((top)) Today

Wooldridge test for serial correlation in panel-data models H0: no first-order serial correlation F( 1, 4134) = 27.839 Prob > F = 0.0000 Reject H0 at any conventional level → strong evidence of positive first-order serial correlation. Standard errors from xtreg, fe would be biased downward; use cluster-robust or Prais-Winsten transformation. 7. Relationship with Other Commands | Command | Test | Panel type | Robustness | |---------|------|------------|-------------| | xtserial | Wooldridge (2002) | Unbalanced | Heteroskedasticity-robust | | xthrtest | Wooldridge (2002) for random effects | Balanced only | Not robust | | estat serial | Ljung-Box (after xtregar ) | Requires balanced | Not robust |

checking xtserial consistency and verifying not already installed... installing into C:\Users\...\ado\plus\... installation complete. If behind a firewall or with no internet, manually download xtserial.pkg and xtserial.ado from https://ideas.repec.org/c/boc/bocode/s434901.html . Then place the .ado file in your personal ado folder (e.g., ~/ado/personal/ ) and run: xtserial stata install

C:\Program Files\Stata18\ado\plus\x\xtserial.ado *! version 1.1.0 15oct2019 Then test with a built-in dataset: Wooldridge test for serial correlation in panel-data models

capture which xtserial if _rc == 111 display as yellow "Installing xtserial from SSC..." ssc install xtserial, replace Relationship with Other Commands | Command | Test

. ssc install xtserial, replace checking xtserial consistency and verifying not already installed... installing into C:\Users\jdoe\ado\plus\... downloading xtserial.pkg from http://fmwww.bc.edu/repec/bocode/x/ downloading xtserial.ado done. End of paper

which xtserial Successful output:

This prevents errors when sharing code with collaborators. xtserial is an essential tool for applied panel data econometrics in Stata. Its installation is straightforward via ssc install xtserial , but users must be aware of proxy settings, permissions, and verification steps. Once installed, the command provides a robust, easy-to-interpret test for first-order serial correlation, improving the credibility of panel regression results.